The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Lensbaby Velvet 56 and the Sigma 60mm F2.8 DN for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Lensbaby Velvet 56 is the longer of the two lenses at 86mm. The Sigma 60mm F2.8 DN with a length of 56mm is 30mm shorter. Besides being longer, the Lensbaby Velvet 56 also has a larger diameter of 72mm compared to Sigma 60mm F2.8 DN's 61mm diameter.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sigma 60mm F2.8 DN weighs 190g, 52% (210g) lighter than the Lensbaby Velvet 56's weight of 400g.
Lens Mounts
Both Lensbaby Velvet 56 and Sigma 60mm F2.8 DN has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-5, Panasonic GH6 and OM System OM-1.
Lensbaby Velvet 56 is also available in Canon EF , Fujifilm X, Nikon F (FX), Pentax KAF3, Samsung NX, Sony Alpha and Sony E mounts.
Sigma 60mm F2.8 DN is also available in Sony E mount.
Focal Range
Lensbaby Velvet 56 is a prime lens with fixed focal lenght of 56mm. Sigma 60mm F2.8 DN is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of 90mm when used on a APS-C / DX format camera.